Governor for internal-combustion engines



l J an 2, 1923.

- lmmzz. G. W.-PIERCE.Y'

GQVERNOR FOR 'INTERNAL COMBUSTION ENGINES.

FILED N'ov. 1.1920.

2 SHEETS-SHEET I.

g H! H INVENTOR. 650965 14/. 1 /5/6635.

Jan. 2, 1923- G. W. PIERCE.

GOVERNOR FOR INTERNAL COMBUSTION ENGINES.

2 SHEETS-SHEET 2.

FILED NOV. 1,1920

YNVENTOR. 650$ 14/ P/EECE.

I 4' AT? ORNEYS 25 the controlling 'niechauis i GEORGE,VI. PIERCE,- OF. ANDERSON, INDIANA, ASSIG-NOE"TO :PEERCE-GOVERI\TOR 00.,

QOEJANIE'DERSQN, ENDIA-NA,. A CQBEORATEON.

GOVERNOR FOR.INCEEENAL-CDHCBUSTION I Application filed November 1, 1920. 7 Serial No. 420,907.

To all whom it may concern:

Beit known-that I, Gnonon' PIERCE, a citizenofthe United-States, and a resident 01 Anderson, county "ot Mfadison, and State of Indiana, have invented a certain new and useful Governor for Internal-Coinbustion fEnginesgaand {do hereby declare that the 1 followingis a full, clear,: and exact description thereof; reference being hadto the accompanying drawings, in which like nuineralsrefer to :like parts.

This invention relates to governingineans for self propelled internal combustion en- Zgines. The chief objectof the V. inveirtionv is to provide governing neans which will automatically regulategthe power generated by the internal combustion engines with which the saine is associated, and when said engine'is associated with; a sell propelled vehicle said governing means is adapted to control the speed thereof as well.

ll he chief 'featureot theinvention consists iuthenianner of operating and controlling vthe governor and in installing andoperating and. governor on the motor vehicle whereby the supply of gas or t'uelto the motor will be emit-rolled by the speed of the motor or vehicle so as to maintain the speed constant as predeter ined 3O and set by the operator. lirother words if it is desired that the vehicle travel at a speedot fifteen miles an hour it will be started. and automatically attain thatsp eed with the throttle set accordingly. Upon a change in load. or traction surface the governor will automatically operate thethrottle by the Variationo f the' engine speed whereby said speed will tend to be kept constant. Another feature-oi the invention consists '40 in associating the means foradjusting. the

limit at which the governing nieans becomes effectivewith other means for varying said limit.

Another featuregot the invention consists in the construction of the adjustii'ig and operating means and the method and. manner ol 'operating the same on the motor whereby the adjustment and control will be effective without any material changes being made in the original arrangement of parts in the motor.

The full nature of this invention will be understood from; the accompanying drawings and the following description and claims.

In the drawings Fig. l is a side eleva- ,tional view r01" an internal combustionengine to. which the invention has beenapplied. Fig; 2 is a seini-diagrammatic plan view ofthe invention; and the parts associ- ;ated therewith. Fig. 3 isanenlargedsectional I view of the invention taken on, the line 3+3fof Zand in; theftlirectionbf the arrows. "Fig. lisan enlarged central sectional view-of the governing device." Fig. 5 is across sectional viewof the governing device taken on the line 55 of 't and in the direction of the arrows.

lnthe drawings lO indicates an internal combustion engine provided with a fan belt '11, a throttle valve construction 12 con trolle d r by the throttle rod113. The govern- ,ing. device herein illustrated is o l. the; fly ball type and said'governing device isindicatedjatliand is suitably supported, upon the engine by the bracketmeinber 15." The pulley wheel l6, in the present instance, is adapted tobe associated vvith theian belt l1 oi? the internal combustion enginei-ind be driven 3 thereby. Thus the, speed lot. the governor will be directly .proportionalflto the speed oi? the in ternal combustion engine. The governor in: therpresentinstance, Figs. l and comprises aslia'ft' 17,ro.tata gbly su p ported within the housing portion'l l: 'ot' the governor, said shaft being provided with suitable bearings within. said housing and, having one. end I thereof extendingj out wardly f ointhe saine to su'pport the pulley 16 so as to be rotated thereby. l Yithin the housing inemberflet, which in thepresent instance is shownfdividedj at 18 and, said sec- Itions secured together; by suitable bolt. or rivet means 19, is a collar portion 20suitably secured to the shaft 17-as byn1eans1of the pin 21. The collar portion QOisprovided with a pluralityot ears 22- and between. each pairof ears is pivotally supported. at ,23 a weighted lever 24,,ouee11d ofwhich is provided with a ball weight 25 and thesother emhof which isprovided with the bumper 2(3. Slidably supportedupon the shaft 1? is a bearing .ringQZ, which bearing ring is adapted to engage and bear against .one end of the lever 28 pivotally supported at 29 in the housing member lei, said engaging end of the lever being indicated by the dotted lines and the nuineralBO in Fig. l.

' Froin the foregoing it will be understood that rotation of the shaft 17 through the belt pulley 11 and the pulley wheel 16, causes the weighted balls 25 to move outwardly from the shaft 17 due to the centrifugal force acting thereon. The bumper 26', there fore, engage the'bearing'ring 27 to tilt the lever 28 upon its pivot 29, and this tilting movement of the lever is transmitted to the rod 13, shown in Fig.2, through the means illustrated in Figs. 1, 2 and 3. v

The means for transmitting the tilting movement of the lever 28 comprises a rod member .31'secured at one end to the other end of the, lever 28. A suitable bracket 32,

see Figs. 1,2 and 3'pivotally supports at 33 a bell crank lever 34, one end of which is socured to the other end of the rod member 31. Thus, the tilting movement of the lever 28 is transmitted. to andthrough thelever 34.

The other end of the lever 34is suitably consition of the throttle valvejcontrolling shaft 13 and, therefore, the throttle valve. This feature, however, is not claimed in the present invention. This movement of the lever 28, which has heretofore beendes'cribed, is transmitted to the rod 31, bell crank lever 34. link rod 35, lever 36 and shaft 13.

"Referencewill now be had to Figs. 1, 2

' and 3 wherein the yielding or fr ctional maintaining means and the adjustment thereof and the manual operation thereof will nowbe'described. The lever 34 is provided with an extension 40 adj acent its con nection withthe link rod35. A coil spring 41 is secured tov the extension 40 of the lever "34, or adjusted bysecuring it in the intermediate holes'42 of the lever 34. The other end of the coil spring 41 is secured to an an-.

gularly extending end 43 of a friction rod 44. i The friction rod 44 is frictionally supbracket is suitably slotted at .45 to receive a rod engaging yoke member .46, which yoke member extendsvthrough said opening or slot 45 in the bracket 32 and is adapted to clamp, the friction rod 44 to said bracket and frictionally maintain the same in position "thereon. The means for frictionally clamping said bracket 32-and the yoke member 46 comprises a coil spring 47 co-axial with the depending portion ofsaid yoke member and a spring retaining cap member 48. Other friction means, if desired, may be substituted for the frictional clamping construction shown. The foregoing is the preferred of this invention, reference appended claims. ported by the bracket 32, see Fig. 3. Said construction, .Thus, the tension of i the spring 41 regulates the initial position of the lever 28 and consequently the initial position of the bearing ring 27 of the governing device. Increasing the tension of the spring 41 tilts the lever. 28 upon the pivot 29 and forces the bearing ring 27 into a position such that the fly ball actuated bumpers 26 will engage said ring sooner than otherwise would be the case if the tension of the spring 41 were reduced. Thus, by means of the links 42 the initial tension of the spring 41 may be .adjusted to the entirev combination of rods, levers and governing device.

The means for'varying the tension of the spring 41 during the operation Of'llhG internal combustion engine comprises the manually operated rod member 50, see Figs. 1 and 2, which rod member comprises a rock shaft upon which is secured a lever 51, which lever at its other end is associated, as shown in Fig. 3, with the angularly extending-end of the friction rod 44 so that said rod may be manually moved when desired by means of the rod50 in opposition tothe frictional clamping engagement of the means hereinbefore described. Thus clockwise rotation of the shaftor rod 50 will increase the tension of the'spring member 41 and counterclockwise rotation of the shaft 50 will reduce the tension thereof.

From the foregoing it will be noted that the inventionincludes two features, one,lthe

driving of the governor by the fan belt of the engine so that the governor pulley wheel acts as a belt tightener, as well as the governor speed being proportional to the engine speed, and second, the connection between the usual manually operable fuel controlling means and the governor, whereby manual The invention claimed is: 1. A controlling device including a controlled member, a pair of controllingmembers, a connection between one of said controlling members and said controlled member, and yielding means frictionally retainingsaid last mentioned controlling member in position but permitting forcible moves ment thereof,

2. A controll ng device including a concrank connected at one end to said controltrolled member, a controlling member, a bell ling members and its other end being asso ciated with the controlled member, means connecting said association and the other said last mentioned controlling member in position, but permitting forcible movement thereof comprising a pair of oppositely acting gripping members, frictional means for associating said gripping members together, and a member associated with said gripping members and said second mentioned connection for controlling the position of the latter.

In Witness whereof, I have hereunto affixed my signature.

GEORGE W. PIERCE. 

